Oil-heater.



J. F. HIGGINS.

Patented Apr. 22, 1919.

2 SHEETSSHEET l.

J. F. HIGGINS.

OIL HEATER.

APPLHIATION FILED MAR- 23, 1918.

1,301,262. I Patented Apr. 22,1919.

i 2 SHEETS-SHEET 2.

STE/in I UNITED STATES PATENT nron.

JAMES FRANKLIN HIGGINS, on NEW onnnnns, LOUISIANA, AssIeNon, 'BY MEsnE ASSIGNMENTS, TO THE ROGERS-HIGGINS 0.0., 1nd, on NEW ORLEANS, LOUISIANA,

. A. CORPORATION OELOUISIANAL citizen of the United States, residing at New Orleans, in the parish of Orleans and State 5 of Louisiana, have invented certain new and useful Improvements in Oil-Heaters, of

which the following is a specification, reference beinghad therein to the accompanying drawings. 7 v

This invention relates particularly to liquid-heaters arranged to raise the tempera ture of fuel-oil prior to. itsintroductioninto a fire-box or other place of combustion.

The heater provided by the invention is so arranged as to constitute a support for an I oil-pump, theexhaust-steam from which. is

the heater in such manner asto heat the oil delivered to the heater from the pump, the

i steam flowing through tubes in the heater and the oil passing through a chamber havingthe tubes disposed therein.

.An air-chamber associated with a pressure-gage and a pump-governor is connected with the oil-chamber at its top, ,where'the oil is not liableto reach and interfere with .;the action of thegage and governor.

The heater'is constructed without gaskets that are liable to blow out, andnobolts are used in it. Heads are removably'. fitted at each end of thecasing of the heater.. As there are no fittings connected with the heads, they can be removed readily for inspection of theinterior of the heater.

When read in connection with the description herein, the details of construction and ?arrangement of partscontemplated by the invention willbeapparent from the. accompanying drawings, forming part hereof, 40 wherein an embodiment of the invention is disclosed,,for purposes of illustration.

1 While the disclosures herein set forth are considered to exemplify a preferable embodiment ofthe invention, it is to be under- 45, stood thatit is not the intention to be limited necessarily thereto in interpretation of the claims, as modifications can be made within the limits of the claims without departing. from the nature and spirit ofthe invention.

to Like reference-characters refer to oorre= Specification of iietters fatent. Application filed March 23, 191 8. ser al No, 224,234.

OIL-HEATER. V

Patented Apr. 22, 1919.

. spondingparts in the views of the drawings, 1 of whichi Figure 1 is an end elevation,

Fig. 2 isa longitudinal sectional view of the casing;

Fig. 3 is a transverse sectional view on the line 3 3,'Fig.2; and

Fig. lis a transverse sectional view on the line 4-4, Fig. 2. l

2 Having more. particular reference to the drawings, 4; designates cradles including legs upon which a cylindircal casing 5 of the heater is supported. At each end the casing is exteriorly threaded to receive a correspondingly interiorlythreaded annular flange 6 of a head 7, the heads closing the delivered. directly. into and passed through 1 ends of, and having steam-tight joints with, the casing. As the heads can be removed by turning oif from the casing and again placed in position inasimilar manner, it is easyto have access to the interior of the casing for inspection, cleaning, and repair;

A partition 8' isldisposed diametrically in [each end portion of, andiatits periphery has steam-tight connection with the, casing.

The partitions divide the interior of the easing into steam-chambers A and Af at the ends and an intermediate oil chamber B. Tubes 9are set with steam tight'joints into the partitions, they extendbetween the partitions longitudinally through the oilchamber, and they" open at' their ends to the steam-chambers. y i

Steamisadmitted to one of the steamchambers, for example to chamber A, through an inlet 10in the upper portion of the casing, and it passes through the tubes 9 to the other steam-chamber, from which it goes througha returntube 9, similar to the tubes 9 and located in alower part of the oil-chamben to an outlet-tube 11, whichis connected by a steam-tight slip-joint with the tube 9. The outlet-tube has in the chamber first receiving the steam an elbow, 12, connected to an outlet-pipe 13, set with a threaded joint into the casing at a lower point thereof. 7 y

Oil is delivered through a pipe 14 at the top of the heater to the oil-chamber, and it is discharged through a pipe 15 leading 190 suitable types are connected with .the air-s chamber.

A bracket 19 is fixed to the upper por tion of the casing, and it carries a steam-actu ated pump 20, having a steam-exhaust pipe, 21 connected with the inlet 10 and having its. pump deliveryport;connected withl the pl e 14. The speed of the pump is controlled y the governor 18 in a mannercommon to the artvof engine control. v

Exhaust-steam from the pumpx'entermg one of the steam-chambers of'the "heater ,passes through the. tubes '9 to. the other 7 "steam-chamber, and therefromthrough tube 9f, outlet-tube 11, elbow 1'2, and outletepipe 13. Oil delivered from the pump through the pipell: passes around the tubes?) in the oil chamber and thence goes, out through pipe. 15 leading to the place of combustion.

A .low "back-pressure or relief valve 22,

: located lin steam-outlet pipe .13, maintains a steam pressure otfrom one to-five pounds in theheater and thus maintains a higher tem- 'perature in the oil-chamber. {The steamoutlet being in the lower portion of the easing, the outletpipe 13 acts as a dra n for water of condensation, and the necessityof providing separate drainage for the steamispaces therebyis avoided. V

As ithe oil-outlet ,pipe 15 leads from the lower point of the oil -ch'amber, thereis little--1-iability of the accumulation of sediment Theair-cha ber in dome l6 cushions the pulsating dischargejof oil -from the pump Hinto the oil-chamber and insures a substanhydraulic hammer in the heater and'pipe- ,linesand reducing dangerofbreakagetherefrom. fl'talso affords a convenient place for location. offshe pressure-gage and pumpgovernor, where vthey are afiected by air :or

Eother gas Within the chalnber and are less fliabletohave theiraction interfered with by clogging or other causes than when viscous oil acts directly thereon. v A

Having ,thussdescribed my invention, what la claim as new, anddesireto secure by Leteothrough-the partitions into the steam-cham- .vtersfPatent,'is-- 1. An oil-heater-comprising a closed casing, partitions dividing :theinteriorof the steam-chambers and an casing into end tubes extend- "through said steam-chamber inlet.

end with one of the -steam-.chambers,--and a pipe connected at the other end :of the return-tubeand leading from the heater, there .beingan inlet andoutlet for the oil-cham- .T bel and. anjinletto one .off .thejsteam-cham- 'bersLI' 2. in altarsali sin a cylindrical rcasing having removable heads, 'diametrical partitions dividing the interior of the casing 1 into.end-isteam-chambers and an intermediate oil-chamber, tubes extending through *-tl1e oil ch-amberancl opening through the partitions into the steam-chambers, a returntube extending a lower portion ofthe ollchamber from one partitionto ftheqotherand communicating at one .end withxone of the steam-chambers, a pipe connected at the .other end of the return-tube .and leading from "the heater, anda casing containing a '"pressure-chamber communicating with the upper poitionof the oil chamber and arranged to commun cate with a pressure-gage and'apump-governor, there being an inlet to the, top of the oil-chamber andan outlet from thebottomtherefi an inlet at-the top of one of thesteam-chambers.

'3. An oil-heater comprising a casing,par-

titions dividing the casing into end steamchambers and an intermediate. ,oihchamber,

opening through the j-partitions into the steam cham'berS, a return-tube extending in a lower portion of the oil-chamber from one chamber and having connectionby a':steampartition to the other andjcommunicating 'tight slip-joint with the return tube, there being aninlet-andan outlet -for'fthe oilchamb'er, and an inlet-to the3 steam-chamber throughwhichsaid pipeflea'ds.

1. Anoil'pumping and heatingvapp-ara tus comprising the combinations-of a-closed cas tially even flow therefrom, thus avolding iinto the steambhgtmbrrs, a return-tube ex- ]tendingin the lo wer*portion of-t'he oilehamber from one partition'to the'other and communicating atone end with one of the steam chambers, a pipe connected f at the other end of the return tube and-leading from the heater ,Jthere being an in letfland an outlet for theoil-chamber and an inlet to one of the steanrchambers, a supportcarfried by the casing, and a steam-actuated pump on said support arranged .to deliver oil to said oil-chamberfand exhaust-steam 5. An-oil pumping and heating apparatus L comprising the combination of a closed teasing containing a steam-chamber having an sive to pressure in said air-chamber arranged inlet and outlet and an adjacent oil-ehamto control said pump. 10 her having an inlet and outlet, a casing con- In testimony whereof I affix my signature taining an air-chamber communicating with in presence of two Witnesses.

the upper portion of the oil-chamber, 2, JAMES FRANKLIN HIGGINS. steam-actuated pump arranged to deliver oil Witnesses:

to said oil-chamber and exhaust-steam to H. SCHNEIDER,

said steam-chamber, and a governor respon- ROGER AMANEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). 0." 

